class AddTimestamps < ActiveRecord::Migration
  def self.up
    add_column :submissions, :submitted_at, :datetime
    add_column :judgments, :created_at, :datetime
    add_column :judgments, :updated_at, :datetime
    add_column :approvals, :created_at, :datetime
    add_column :approvals, :updated_at, :datetime
  end

  def self.down
  end
end
